h2{
  text-align: center;
}

.people_list{
  width: 400px;
  margin: 40px auto;
  padding: 20px;
  border: 1px solid #eee;

  li{

    height: 50px;
    line-height: 50px;
    .form_input{
      width: 300px;
      height: 28px;
    }

  }

  .submit{
    width: 100px;
    height: 30px;
    float: right;
    margin-right: 50px;
    margin-top: 120px;

  }
}
